Hi All,
Happy New year
Started a new work bridged class D amp.uploaded schema,if anyone tried this before please help to improve (new year gift)
1. low price & easy get components used
2. THD+N 1% for mid and 10% for full output
3. FSW lock to 250KHz~300KHz max.
right now no protection added
C15&C17 must be 100V one and U1 change to LM319 if needed
Regards
MANOJ
Happy New year
Started a new work bridged class D amp.uploaded schema,if anyone tried this before please help to improve (new year gift)
1. low price & easy get components used
2. THD+N 1% for mid and 10% for full output
3. FSW lock to 250KHz~300KHz max.
right now no protection added
C15&C17 must be 100V one and U1 change to LM319 if needed
Regards
MANOJ
Attachments
Last edited:
finally sir you have come back to use ucd amplifiers
Hi Stewin,
This is not a UCD style one, first it start oscillation through hysterisys loop and after then use post feedback what you said UCD mode.without speaker load it will start
Post feedback style give more equal to class AB design when we applying high voltage rail and BTL mode(its only my word)
sigma delta also stable one(IRS2092)
I found the solution for my sigma delta design (AUD600 & AUD1000SD)
Regards
MANOJ
Hi All,
Happy New year
Started a new work bridged class D amp.uploaded schema,if anyone tried this before please help to improve (new year gift)
1. low price & easy get components used
2. THD+N 1% for mid and 10% for full output
3. FSW lock to 250KHz~300KHz max.
right now no protection added
C15&C17 must be 100V one and U1 change to LM319 if needed
Regards
MANOJ
Sir comparator lm311 cam use? Thakss
any way why use slow lm393
Hi Stewin,
LM393 Response(on & Off) time is 1.3uS that means 750KHz. I used only 250Khz~300KHz so no issue for me
Regards
MANOJ
Sir comparator lm311 cam use? Thakss
Hi,
With little modification we can use LM311 / LM319
Regards
MANOJ
Hello guys
a friend of mine found that I made a errata in my redrawing of the AUD600 that mister Manojtm made I forgot to add a 100uF 25V cap on pin 8 from the 555 to pin 1 negative side of the cap
here is the link with Sprint file please only use for diy no to " $$$$ "
https://personal.filesanywhere.com/fs/v.aspx?v=8d6c65885a6276bdab6a
Best Regards
Juan
a friend of mine found that I made a errata in my redrawing of the AUD600 that mister Manojtm made I forgot to add a 100uF 25V cap on pin 8 from the 555 to pin 1 negative side of the cap
here is the link with Sprint file please only use for diy no to " $$$$ "
https://personal.filesanywhere.com/fs/v.aspx?v=8d6c65885a6276bdab6a
Best Regards
Juan
Attachments
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- Class D
- My class D amp